Not every one does it the same . But as long as the end result works without leaks and is positioned correctly you'll be good. If the cylinder is cracked it must be sleeved.
Did you all know that sleeves in aluminum blocks need to be .003 above the deck to allow for block expansion. If not when the engine gets hot the block lifts the head off of the sleeve at the compression ring on the gasket from the aluminum expanding more then the steel.
So the block must be square decked before the sleeves are installed. The the sleeves are milled .003 above the deck
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